DeWalt DC733 Instructions Manual page 39

INSERTING AND REMOVING BITS (FIG. 1, 4)
1. Open the chuck by turning the sleeve (p)
counterclockwise and insert the bit shank.
2. Place the bit in the chuck as far as it will go and
lift slightly before tightening.
3. Tighten firmly by turning the sleeve clockwise.
4. To remove the bit, proceed in reverse order.
SELECTING THE OPERATING MODE OR ADJUSTING THE
TORQUE (FIG. 5)
The collar of this tool has 15 positions for the
adjustment of the torque to suit the size of the screw
and the workpiece material. For torque adjustment,
refer to Screwdriving.
Select the drilling mode or torque by aligning the
symbol or number on the collar (e) with the indicator
(q) on the housing.
FORWARD/REVERSE SLIDER (FIG. 6)
To select forward or reverse rotation, use the
forward/ reverse slider (b) as shown (see arrows on
tool).
WARNING: To reduce the risk of
personal injury, always wait until the
motor has come to a complete standstill
before changing the direction of rotation.
TWO-GEAR SELECTOR (FIG. 7)
Your tool is fitted with a two-gear selector (f) to vary
the speed/torque ratio.
1 low speed/high torque
(drilling large holes, driving screws)
2 high speed/low torque
(drilling smaller holes)
For speed rates, refer to the technical data.
WARNING: To reduce the risk of
personal injury:
• Always push the two gear selector
completely forward or backward.
• Do not change gears at full speed or
during use.
Removing and Fitting the Chuck
(fi g. 8, 9)
DW907
1. Open the chuck jaws as far as possible.
2. Insert a screwdriver into the chuck and remove
the chuck retaining screw by turning clockwise
as shown in figure 8.
3. Tighten an hex key into the chuck and strike it
with a hammer as shown in figure 9. This will
loosen the chuck so that it can be unscrewed
by hand.
4. To refit the chuck, proceed in reverse order.
Prior to Operation
1. Make sure your battery pack is (fully) charged.
2. Insert the appropriate bit.
3. Mark the spot where the hole is to be drilled.
4. Select forward or reverse rotation.
OPERATION
Instructions for Use
WARNING: To reduce the risk of
personal injury:
• Always observe the safety instructions
and applicable regulations.
• Be aware of the location of pipework
and wiring.
• Apply only a gentle pressure to
the tool. Excessive force does not
speed up drilling but decreases tool
performance and may shorten tool life.
• To minimise stalling on break-through,
progressively reduce the drill point
pressure towards the end of the
operation.
• Keep the motor running when pulling
the bit back out of a drilled hole. This
will help prevent jamming.
Proper Hand Position (fi g. 1, 10)
WARNING: To reduce the risk of
serious personal injury, ALWAYS
use proper hand position as shown
in figure 10.
WARNING: To reduce the risk of
serious personal injury, ALWAYS hold
securely in anticipation of a sudden
reaction.
Proper hand position requires one hand on top of
the housing, with the other hand on the grip (h).
SWITCHING ON AND OFF (FIG. 1, 6)
1. To run the tool, press the variable speed switch
(a). The pressure exerted on the variable speed
switch determines the tool speed.
2. To stop the tool, release the switch.
EN GL IS H
37